Add Windows CI for msvc 2017 and msys2
Currently the container is based upon a windows 1607 image and requires a runner with a server/hyper-v 1607 host to be able to execute.
There are plan on moving the runner to a 1807 later.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Currently the container is based upon a windows 1607 image and requires a runner with a server/hyper-v 1607 host to be able to execute.
There are plan on moving the runner to a 1807 later.